Spraying device of dish washing machine and dish washing machine

Abstract

The spraying device is internally provided with a mounting cavity, and the mounting cavity is communicated with a water inlet channel and at least two spraying channels; the spraying device comprises a valve core which is arranged in the mounting cavity in a manner of rotating around a shaft; a first water channel communicated with the water inlet channel is arranged in the valve element, at least one water outlet communicated with the water channel is formed in the peripheral side wall of the valve element, and the valve element rotates to enable the water outlet to be selectively communicated with at least one spraying channel. The tableware spraying device has the beneficial effects that the valve element rotating around the shaft is arranged, and the water outlet in the valve element is communicated with the spraying channels in a switching mode, so that the spraying mode of the spraying device is changed, richer spraying water flow is formed, tableware is comprehensively sprayed, and residual stains are reduced.

Description

Technical Field

[0001] This invention belongs to the field of tableware cleaning, and more specifically, relates to a spray device for a dishwasher and a dishwasher. Background Technology

[0002] With social development and the continuous improvement of people's living standards, dishwashers, as a type of household appliance that automatically cleans tableware such as bowls, chopsticks, plates, dishes, knives, and forks, are gradually attracting more and more attention from families, providing convenience for users.

[0003] Dishwashers are generally equipped with an inner tub for holding dishes to be washed. The bottom wall of the inner tub is usually equipped with a rotating spray assembly. Some dishwashers also have rotating spray assemblies on the side walls and / or top walls of the inner tub. When the spray assembly sprays water, the reaction force of the water drives the spray arm to rotate, and then sprays water to various parts of the inner tub through the spray arm to achieve the purpose of cleaning the dishes.

[0004] However, in existing technologies, the spray arm can generally only rotate in one direction, and the rinsing position is basically the same each time. This results in some dead corners of the dishes not being effectively rinsed by the spray water, leading to an unsatisfactory overall cleaning effect of the dishwasher.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a spray assembly and dishwasher for a dishwasher. By setting a valve core that rotates around an axis, the water outlet on the valve core is switched to connect with each spray channel, thereby changing the spray direction of the spray device and solving the problem that the existing spray device has a single spray water flow pattern and cannot thoroughly rinse the tableware.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is: a spray device for a dishwasher, which has an internal mounting cavity, and the mounting cavity is connected to a water inlet channel and at least two spray channels;

[0008] The spraying device includes,

[0009] The valve core is rotatable around an axis and is installed in the mounting cavity;

[0010] The valve core has a first water channel inside that communicates with the water inlet channel, and at least one water outlet that communicates with the water channel is opened on the peripheral wall of the valve core. The valve core can be rotated so that the water outlet can be selectively connected to at least one spray channel.

[0011] Furthermore, the spraying device includes,

[0012] The moving parts reciprocate axially relative to the valve core;

[0013] The transmission mechanism, located between the moving part and the valve core, is used to convert the axial movement of the moving part into the rotation of the valve core around the axis.

[0014] Furthermore, the transmission mechanism includes,

[0015] A slide, provided on the outer peripheral wall of the valve core, includes at least a spiral first slide section;

[0016] The guide structure, connected to the movable parts, is movably installed within the slide rail;

[0017] Preferably, the slides are connected end to end to form a circle.

[0018] Furthermore, the slide rail includes a second slide rail section, which is arranged alternately with the first slide rail section, one end to the other; the slide rail is arranged to surround the outer peripheral wall of the valve core in the circumferential direction of the valve core.

[0019] Preferably, the starting end of each slide section is located in the extension direction of the connected slide section; a stepped structure that sinks into the valve core is provided between two connected slide sections, and the bottom surface of the slide section at the end of the slide section is higher than the bottom surface of the slide section at the starting end of the connected slide section.

[0020] Furthermore, the moving parts include,

[0021] The actuating component is located inside the water inlet channel and moves along one axial direction of the valve core under the drive of water flow;

[0022] The reset component is elastically extendable. One end is connected to the actuating component, and the other end is movably connected to the channel wall of the water inlet channel or the valve core, driving the actuating component to move along the other axial direction of the valve core.

[0023] Furthermore, the actuating component has a columnar structure, which extends into the first water channel through the opening on the axial side of the valve core. A second water channel is formed inside the actuating component. An inlet communicating with the second water channel is opened on the axial side of the actuating component near the water inlet channel, and an outlet communicating with the second water channel is opened on the peripheral side wall. The outlet of the actuating component is connected to the first water channel.

[0024] Furthermore, the columnar actuating component has a radially outwardly extending support at one end near the water inlet channel. The support or valve core has an annular rotating groove coaxial with the valve core. One end of the reset component is slidably connected to the rotating groove, and the other end is connected to the valve core or support.

[0025] Furthermore, the columnar actuating component is provided with a connecting part extending to the outer peripheral wall of the valve core. The connecting part is set at a certain distance from the valve core, and the guide structure is installed on the connecting part.

[0026] Furthermore, each outlet of the actuating component is equipped with an adjustable structure that can be opened and closed.

[0027] A dishwasher has an inner tub for holding tableware, and the inner tub is equipped with a spray device as described above.

[0028] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: by setting a valve core that rotates around the axis, the water outlet on the valve core is switched and connected with each spray channel, thereby changing the spraying mode of the spraying device, forming a richer spray water flow, spraying the tableware comprehensively, and reducing the residue of stains.

[0029] At the same time, the present invention has a simple structure, significant effects, and is suitable for widespread use.

[0030] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0031] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0032] Figure 1 This is a schematic diagram of the appearance of the spraying device according to an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the valve core structure according to an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of another valve core structure according to an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the internal structure of the spray device when water enters, showing that the moving part of the device is columnar.

[0036] Figure 5 This is a schematic diagram of the internal structure of the spray device when the actuating component is columnar, according to an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the internal structure of a spray device whose moving part is an electric actuator, according to an embodiment of the present invention.

[0038] Figure 7 This is a schematic diagram of the internal structure of a spray device with an annular actuating component according to an embodiment of the present invention.

[0039] Figure 8 This is a schematic diagram of the initial state structure of the spray device according to another embodiment of the present invention;

[0040] Figure 9 This is another embodiment of the present invention. Figure 8 A schematic diagram of the AA cross-section;

[0041] Figure 10 This is a schematic diagram of the spray device structure during the relative displacement of the guide structure to the valve core according to another embodiment of the present invention;

[0042] Figure 11 This is another embodiment of the present invention. Figure 10 BB cross-sectional diagram;

[0043] Figure 12 This is a schematic diagram of the spray device structure after the guide structure is displaced relative to the valve core according to another embodiment of the present invention.

[0044] Figure 13 This is another embodiment of the present invention. Figure 12 A schematic diagram of the CC cross-section.

[0045] In the diagram: 1. Spraying device; 111. First spraying arm; 112. Second spraying arm; 121. Water inlet channel; 122. Spraying channel; 123. Mounting cavity; 130. Valve core; 131. First water channel; 132. Rotating groove; 140. Moving part; 141. Actuating part; 141a. Support part; 141b. Connecting part; 142. Adjustment structure; 143. Reset part; 150. Transmission mechanism; 151. Guide structure; 151a. Guide part; 151b. Elastic structure; 152. Slide; 152a. First slide section; 152b. Second slide section; 152c. Step structure; 160. Bearing.

[0046] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0048] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0049] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] like Figure 1-13 As shown in the embodiment of the present invention, a spray device 1 for a dishwasher is introduced, which has an internal mounting cavity 123. The mounting cavity 123 is connected to a water inlet channel 121 and at least two spray channels 122. The spray device 1 includes a valve core 130, which is rotatably disposed in the mounting cavity 123. The valve core 130 has a first water channel 131 inside that is connected to the water inlet channel 121. At least one water outlet connected to the water channel is opened on the peripheral side wall of the valve core 130. The valve core 130 can be rotated so that the water outlet can be selectively connected to at least one spray channel 122.

[0051] With the above settings, by setting a valve core 130 that rotates around the axis, the water outlet on the valve core 130 is switched to connect with each spray channel 122, thereby changing the spraying mode of the spraying device 1, forming a richer spray water flow, spraying the tableware thoroughly, and reducing the residue of stains.

[0052] In an embodiment of the present invention, the spray device 1 is equipped with a motor, which is located outside the spray device 1. The rotating shaft of the motor extends through the spray device 1 into the mounting cavity 123 of the spray device 1. The rotating shaft is coaxially connected to the valve core 130. The motor drives the rotating shaft to rotate the valve core 130 around the shaft.

[0053] In an embodiment of the present invention, the spray device 1 includes a movable component 140 that reciprocates axially relative to the valve core 130; a transmission mechanism 150 disposed between the movable component 140 and the valve core 130, for converting the axial movement of the movable component 140 into the rotation of the valve core 130 around an axis; controlling the circumferential rotation of the movable component 140 with simple linear reciprocating motion; and driving the valve core 130 to rotate with simple linear reciprocating motion through the movable component 140 and the valve core 130 that cooperates with it.

[0054] In an embodiment of the present invention, the transmission mechanism 150 includes a slide 152 disposed on the outer peripheral wall of the valve core 130, and including at least a spiral first slide section 152a; and a guide structure 151 connected to the movable component 140 and movably disposed within the slide 152.

[0055] With the above configuration, the axially movable guide structure 151, in conjunction with the spiral slide 152 section provided on the valve core 130, enables the valve core 130 to rotate around the axis when the guide structure 151 is positioned outside the valve core 130.

[0056] In embodiments of the present invention, only one first slide section 152a is provided on the outer surface of the valve core 130; preferably, the length of the first slide section 152a in the circumferential direction of the valve core 130 is at least greater than one-quarter of the circumference of the valve core 130; further preferably, the first slide section 152a extends multiple times around the circumference of the valve core 130; by causing the guide structure 151 to reciprocate along the axial direction, the valve core 130 is driven to rotate in both directions.

[0057] In an embodiment of the present invention, the slides 152 are connected end to end to form a circle, thereby forming a continuous closed slide 152, causing the valve core 130 to rotate continuously in one circumference, and causing the water outlet on the valve core 130 to switch and connect with each spray channel 122.

[0058] like Figure 2 and 3 As shown, in an embodiment of the present invention, the slide 152 includes a second slide section 152b, which is arranged to alternately connect end to end with the first slide section 152a; the slide 152 is arranged to surround the outer peripheral wall of the valve core 130 in the circumferential direction; so that the guide structure 151 drives the valve core 130 to rotate in a circumferential direction.

[0059] like Figure 3 As shown, in one embodiment of the present invention, each first slide section 152a and the second slide 152 are bent and connected to form a corner, and the inner corner of each corner is located on the same circumferential side as the outer corner.

[0060] With the above configuration, when the guide structure 151 moves axially along the valve core 130 to a corner, the guide structure 151 comes into contact with the wall of the slide 152 near the outer corner. At this time, the inner corner of the corner is located in front of the guide structure 151 in the rotation direction of the valve core 130. Then, when the guide structure 151 moves in the opposite direction along the axial direction of the valve core 130, the guide structure 151 abuts against the wall of the slide 152 in the rear part of the rotation direction of the valve core 130 at the inner corner of the corner. This allows the guide structure 151, which only performs axial reciprocating motion, to cooperate with the corner of the slide 152, so that the valve core 130 rotates only in one circumferential direction, ensuring that the spray device 1 switches the spray mode sequentially.

[0061] like Figure 2As shown, in another preferred embodiment of the present invention, the starting end of each slide 152 segment is located in the extending direction of the connected slide 152 segments; a stepped structure 152c that is recessed into the valve core 130 is provided between two connected slide 152 segments, and the bottom surface of the slide 152 at the end of the slide 152 segment is higher than the bottom surface of the slide 152 at the starting end of the connected slide 152 segment.

[0062] Specifically, the guide structure 151 reciprocates along the axial direction of the valve core 130, moving relative to the starting end of the first slide section 152a or the second slide section 152b via the step structure 152c at its end, so that the guide structure 151 switches more smoothly between each slide section 152.

[0063] In addition, by setting a step structure 152c between each of the first slide section 152a and each of the second slide sections 152b, a height difference is formed between the two to prevent the guide structure 151 from moving in the opposite direction and to ensure that the valve core 130 always rotates in the preset circumferential direction.

[0064] In an embodiment of the present invention, the bottom surface of at least one first slide section 152a or second slide section 152b is inclined outward along the radial direction of the valve core 130 from the starting end to the end.

[0065] In a preferred embodiment of the present invention, the bottom surface of each first slide section 152a and / or second slide section 152b of the slide 152 is inclined outward from the starting end to the end along the radial direction of the valve core 130.

[0066] In embodiments of the present invention, each second slide section 152b and the first slide section 152a are respectively inclined along the axial direction of the valve core 130 to the circumferential direction of the valve core 130.

[0067] In an embodiment of the present invention, the guide structure 151 is made of an elastic material, and the guide portion 151a abuts against the bottom surface of the slide 152.

[0068] like Figure 4-13 As shown, in an embodiment of the present invention, the guide structure 151 includes an elastic structure 151b connected to the actuating component 141 and a guide portion 151a connected to the elastic structure 151b. One end of the guide portion 151a abuts against the bottom surface of the slide 152. Preferably, the elastic structure 151b is a spring or a spring sheet. By pushing the guide structure 151 through the elastic structure 151b, the guide structure 151 is always in contact with the bottom surface of the slide 152 with a height difference. The guide portion 151a can be made of materials with high hardness, such as plastic or metal, to improve the overall structural strength of the guide structure 151.

[0069] In the embodiments of the present invention, the extension direction of each second slide segment 152b is parallel to the axial direction of the valve core 130, and each second slide segment 152b is spaced apart by a certain distance. Each first slide segment 152a extends from the end of the corresponding first slide segment 152a to the starting end of another first slide segment 152a.

[0070] With the above settings, when the guide structure 151 moves relative to the first slide 152, the valve core 130 rotates and the outlet of the valve core 130 is switched to connect with each spray channel; when the guide structure 151 moves relative to the second slide section 152b, the guide structure 151 does not contact the slide 152 wall of the second slide section 152b, and the valve core 130 does not rotate.

[0071] like Figure 6 As shown, in an embodiment of the present invention, the movable component 140 is an electric device, and the dishwasher controls the movable component 140 to drive the guide structure 151 to move axially along the valve core 130.

[0072] like Figure 4 , 5 As shown in Figure 7, in an embodiment of the present invention, the movable component 140 includes an actuating component 141 disposed in the water inlet channel 121, which moves along one axial direction of the valve core 130 under the drive of water flow; and a resetting component 143 which is elastically extendable, with one end connected to the actuating component 141 and the other end movably connected to the channel wall of the water inlet channel 121 or the valve core 130, thereby driving the actuating component 141 to move along another axial direction of the valve core 130.

[0073] With the above configuration, by introducing water into the spray device 1, the water pushes the actuating component 141, causing the guiding structure 151 to move towards the valve core 130 in the axial direction. When the water supply stops, the rebound force of the elastic reset structure drives the actuating component 141 and the guiding structure 151 to move away from the valve core 130 in the axial direction. This allows the guiding structure 151 to reciprocate along the axial direction of the valve core 130. In conjunction with the slide 152 of the actuating component 141, the valve core 130 moves circumferentially, thereby enabling the outlet of the valve core 130 to switch and connect with different spray channels 122.

[0074] In an embodiment of the present invention, a limiting rib extending axially along the valve core 130 is provided in the water inlet channel 121, and the pushing component is slidably mounted on the limiting rib to prevent the pushing part from deflecting circumferentially along the valve core 130.

[0075] like Figure 7As shown, in an embodiment of the present invention, the actuating component 141 is annular. The outer peripheral side of the annular actuating component 141 is slidably fitted to the peripheral sidewall of the water inlet channel 121, and the axis of the inner peripheral sidewall is coaxially arranged with the valve core 130. A connecting portion 141b extending towards the peripheral sidewall of the valve core 130 is provided on the annular actuating component 141, and a guide structure 151 is installed on the connecting portion 141b. Preferably, the inner peripheral diameter of the annular actuating component 141 is smaller than the diameter of the axial opening of the valve core 130. When water enters the spray device 1, the water pushes the annular actuating component 141 to move closer to the valve core 130 and compress the reset structure. When the water enters the device 1, the rebound force of the reset structure pushes the annular actuating component 141 to move away from the valve core 130, thereby realizing the reciprocating motion of the guide structure 151 along the axial direction of the valve core 130.

[0076] like Figure 4 and 5 As shown, in an embodiment of the present invention, the actuating component 141 is a columnar structure, which extends into the first water channel 131 through the opening on the axial side of the valve core 130. A second water channel is formed inside the actuating component 141. An inlet communicating with the second water channel is provided on the axial side of the actuating component 141 near the water inlet channel 121, and an outlet communicating with the second water channel is provided on the peripheral side wall. The outlet of the actuating component 141 is connected to the first water channel 131.

[0077] With the above configuration, when water is introduced into the spray device 1, the water in the water inlet channel 121 enters the second water channel through the columnar actuating member 141 from the water inlet at one end, and impacts the inner wall of the actuating member 141 at the other end, causing the columnar actuating member 141 to move closer to the valve core 130 and compress the reset structure. At the same time, the water outlet on the actuating member 141 is connected to the first water channel 131 of the valve core 130, and the corresponding water outlet of the valve core 130 supplies water. When the water supply stops, the rebound force of the reset structure pushes the tubular actuating member 141 to move away from the valve core 130, thereby realizing the reciprocating operation of the guide structure 151 along the axial direction of the valve core 130.

[0078] In an embodiment of the present invention, the main spraying device is provided with multiple spraying channels 122, which are arranged equidistantly along the circumference; the peripheral sidewall of the actuating component 141 is provided with the same number of water outlets at equal intervals along the circumference, and each water outlet is respectively arranged facing each spraying channel 122; the valve core 130 is provided with multiple first water channels 131 arranged equidistantly along the circumference, and the number of spraying channels 122 is an integer multiple of the number of first water channels 131; when water enters the spraying device 1, the valve core 130 rotates, and some of the water outlets of the actuating component 141 are connected to the corresponding spraying channel 122 through the corresponding first water channel 131, while the other water outlets are blocked by the inner sidewall of the valve core 130 and disconnected from the corresponding spraying channel 122.

[0079] In an embodiment of the present invention, the number of spray channels 122 is twice the number of first water channels 131. When the spray device 1 is filled with water, the valve core 130 rotates, and half of the outlets of the actuating component 141 are connected to the corresponding spray channels 122 through the corresponding first water channels 131. The other outlets are blocked by the inner wall of the valve core 130, and the outlets of the actuating component 141 that are blocked are arranged alternately with the connected outlets. When the spray device 1 stops filling with water and fills with water again, the valve core 130 disconnects from the current outlet and connects to other outlets.

[0080] In embodiments of the present invention, a radially outwardly extending support portion 141a is provided at one end of the columnar actuating component 141 near the water inlet channel 121. An annular rotating groove 132 coaxial with the valve core 130 is provided on the support portion 141a or the valve core 130. One end of the reset component 143 is slidably connected to the rotating groove 132, and the other end is connected to the valve core 130 or the support portion 141a. Preferably, the support portion 141a is an annular structure extending radially outward from the outer peripheral wall of the water inlet end of the columnar actuating component 141. By providing the annular rotating groove 132, at least one end of the reset structure is relatively displaced with the tubular actuating component 141 and / or the valve core 130, so that when the driving part and the valve core 130 move circumferentially relative to each other, the reset structure will not be pulled circumferentially by the two, resulting in excessive stretching and damage.

[0081] In an embodiment of the present invention, the valve core 130 has an annular rotating groove 132 recessed inward on one side of its peripheral wall with an axial opening. One side of the reset structure is slidably connected to the annular rotating groove 132, and the other side is fixedly connected to the support portion 141a of the actuating component 141.

[0082] In an embodiment of the present invention, the top of the inner and outer peripheral side walls of the annular rotating groove 132 are respectively provided with sliding ribs extending in opposite directions, and the extended ends of the two sliding ribs are spaced apart by a certain distance; the reset structure is provided with a slidable slider located in the corresponding sliding groove, the slider is limited to the sliding groove by the two sliding ribs, and the reset structure extends from the gap between the two sliding ribs to the outside of the sliding groove.

[0083] In an embodiment of the present invention, a plurality of columnar reset structures are slidably connected in the rotating groove 132 of the valve core 130, and each reset structure is equidistantly arranged and connected to the support portion 141a of the actuating component 141.

[0084] In an embodiment of the present invention, the reset structure is an axially expandable annular structure. One end of the annular structure is connected to the support portion 141a, and the other end is rotatably connected to the annular rotating groove 132 on the valve core 130.

[0085] In embodiments of the present invention, the reset structure is a spring or a spring sheet.

[0086] In an embodiment of the present invention, the valve core 130 is a columnar structure. The columnar valve core 130 rotates around its own axis. One end of the columnar valve core 130 has an axial opening, and the other end is rotatably connected to the chamber wall of the mounting cavity 123.

[0087] In an embodiment of the present invention, the mounting cavity 123 is a cylindrical chamber, the valve core 130 is a cylindrical structure, and the outer peripheral wall of the valve core 130 slides and fits in contact with the peripheral chamber wall of the mounting cavity 123.

[0088] In embodiments of the present invention, the inlet of each spray channel 122 is located on the peripheral chamber wall of the mounting cavity 123, and the outlet is correspondingly opened on the outer peripheral wall of the columnar valve core 130; preferably, the outer peripheral wall of the columnar valve core 130 is spaced a certain distance from the peripheral wall of the mounting cavity 123, and a connecting pipe with a protruding surface is provided on the outer peripheral wall of the columnar valve core 130. The connecting pipe is connected to the outlet in a one-to-one correspondence, and the end face of the protruding end of the connecting pipe is slidably fitted with the chamber wall of the mounting cavity 123; the contact area between the valve core 130 and the chamber wall of the mounting cavity 123 is reduced, and the friction between the two is reduced.

[0089] In an embodiment of the present invention, the columnar actuating component 141 is provided with a connecting portion 141b extending toward the outer peripheral wall of the valve core 130. The connecting portion 141b is provided at a certain distance from the valve core 130, and the guiding structure 151 is installed on the connecting portion 141b. By providing a spaced arrangement, the contact area between the valve core 130 and the actuating component 141 is reduced, thereby reducing the friction between them.

[0090] In an embodiment of the present invention, the outer diameter of the annular support portion 141a of the columnar actuating component 141 is larger than the outer diameter of the columnar valve core 130, and the connecting portion 141b is connected to the outer peripheral portion of the support portion 141a and extends along the circumference of the valve core 130.

[0091] In an embodiment of the present invention, each outlet of the actuating component 141 is provided with an openable and closable adjustment structure 142; when the actuating component 141 is moved by water, the adjustment structure 142 is closed to block or reduce the passage area of ​​the outlet, thereby increasing the water pressure; when the outlet of the actuating component 141 is connected to the corresponding spray channel 122, the adjustment structure 142 is opened to increase the passage area of ​​the corresponding outlet to the maximum, so as to smoothly supply water to the spray channel 122.

[0092] In the embodiments of the present invention, each adjustment structure 142 is a solenoid valve. The circuit that controls the adjustment structure 142 drives each adjustment structure 142 to open and close respectively, thereby achieving the blocking and opening of the water outlet.

[0093] In an embodiment of the present invention, each outlet of the columnar actuating component 141 is provided with a rotatable adjusting structure 142. Each adjusting structure 142 respectively blocks a portion of the outlet. The adjusting structure 142 can be flipped outward along the radial direction of the valve core 130. When the spray device 1 is not in contact with water, each adjusting structure 142 is in contact with the inner wall of the valve core 130. When the spray device 1 is in contact with water, part of the adjusting structure 142 flips towards the corresponding first water channel 131, so that the outlet of the corresponding actuating component 141 is in contact with the corresponding first water channel. The channel 131 is connected; the adjusting structure 142 adjusts the action component 141 by reducing the passage area of ​​the outlet, thereby reducing the water pressure inside the action component 141 and ensuring that the action component 141 moves to the predetermined position under the push of water; when the action component 141 moves to the predetermined position along the axial direction of the valve core 130, the adjusting structure 142 covering the outlet connected to the first water channel 131 is not limited by the inner side wall of the valve core 130, and flips outward to open the corresponding outlet, ensuring that the water flows smoothly to the corresponding spray channel 122.

[0094] In an embodiment of the present invention, a plurality of first spray arms 111 and second spray arms 112 are provided on the spray device 1, which are alternately and equidistantly arranged along the circumference of the spray device 1. Each spray arm is provided with a spray channel 122. The first spray arms 111 and the second spray arms 112 have drive ports facing different directions, so that when the valve core 130 supplies water to each of the first spray arms 111, the spray device 1 rotates in the forward direction, and when the valve core 130 supplies water to the second spray arm 112, the spray device 1 rotates in the reverse direction.

[0095] In an embodiment of the present invention, a receiving groove with an opening facing the circumferential side of the valve core 130 is provided at the position where the connecting part 141b connects to the guide structure 151. The guide structure 151 is connected to the groove body of the receiving groove, and partially protrudes from the receiving groove and extends into the slide 152 of the valve core 130. By hiding part of the guide structure 151 in the receiving groove, the length of the elastic structure 151b of the guide structure 151 is increased, thereby improving the durability of the elastic structure 151b.

[0096] like Figure 8-13As shown, in another embodiment of the present invention, the spray device 1 is provided with an actuating component 141 connected to the guide structure 151. The actuating component 141 moves axially along the valve core 130 under the drive of the motor. The slide 152 is an elliptical annular slide 152 or a circular annular slide 152 with its axis perpendicular to the axis of the valve core 130. In the initial state, the guide structure 151 is located at one end of the valve core 130 along the annular slide 152. Each outlet of the valve core 130 is connected to a spray channel 122, and the initial position of the guide structure 151 is located at the midpoint of the axial movable path. The actuating component 141 drives the guide structure 151 along the valve core 130. The valve core 130 reciprocates along one axial direction to return to its initial position; the guide structure 151 moves relative to the annular slide 152 at the other circumferential end of the valve core 130, causing the valve core 130 to rotate in the forward direction, disconnecting from the spray channel 122 connected in the initial state and connecting with another spray channel 122; then, the actuating component 141 drives the guide structure 151 to reciprocate along another axial direction of the valve core 130 and return to its initial position, causing the guide structure 151 to return to its initial position, causing the valve core 130 to rotate in the reverse direction, disconnecting from the other spray channel 122 and connecting with the initially connected spray channel 122.

[0097] In another embodiment of the present invention, the annular slide 152 is provided with a stepped structure 152c that is recessed along the relative moving direction of the guide structure 151. The stepped structure 152c is located at a position on the annular slide 152 that is offset a certain distance in the opposite direction of the moving direction of the guide structure 151 at the farthest axial end of the valve core 130. This ensures that during the reciprocating motion of the guide structure 151 in one axial direction of the valve core 130, it first jumps from a higher position to a lower position via the stepped structure 152c before reaching the farthest axial end of the slide 152 of the valve core 130, thereby ensuring that the guide structure 151 moves only in a limited direction and preventing the guide structure 151 from moving in the opposite direction.

[0098] like Figure 1-13 As shown, in an embodiment of the present invention, the valve core 130 is rotatably connected to the chamber wall of the mounting cavity 123 of the spray device 1 around an axis; preferably, a coaxial bearing is provided between the valve core 130 and the chamber wall of the mounting cavity 123 to limit the axial movement of the valve core 130.

[0099] In an embodiment of the present invention, a dishwasher is also described, which has an inner liner for accommodating tableware, characterized in that the inner liner is provided with a spray device 1 of the dishwasher as described above.

[0100] In embodiments of the present invention, the spraying device 1 is disposed on the bottom wall, and / or the peripheral side wall, and / or the top wall of the inner liner.

[0101] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A spray device for a dishwasher, having an internal mounting cavity (123) that is connected to a water inlet channel (121) and at least two spray channels (122); Its features are, The spray device (1) includes, The valve core (130) is rotatably disposed in the mounting cavity (123); The valve core (130) has a first water channel (131) inside that communicates with the water inlet channel (121). At least one water outlet communicating with the water channel is opened on the peripheral side wall of the valve core (130). The valve core (130) rotates so that the water outlet can selectively communicate with at least one spray channel (122).

2. The spray device for a dishwasher according to claim 1, characterized in that, The spray device (1) includes, The movable part (140) reciprocates axially relative to the valve core (130); The transmission mechanism (150) is located between the movable part (140) and the valve core (130) and is used to convert the axial movement of the movable part (140) into the rotation of the valve core (130) around the axis.

3. The spray device for a dishwasher according to claim 2, characterized in that, The transmission mechanism (150) includes, The slide (152) is disposed on the outer peripheral wall of the valve core (130) and includes at least a spiral first slide section (152a); The guide structure (151) is connected to the movable part (140) and is movably disposed in the slide (152); Preferably, the slides (152) are connected end to end to form a circle.

4. The spray device for a dishwasher according to claim 3, characterized in that, The slide (152) includes a second slide section (152b), which is arranged alternately with the first slide section (152a) in a head-to-tail arrangement; the slide (152) is arranged around the outer peripheral wall of the valve core (130) in the circumferential direction; Preferably, the starting end of each slide (152) segment is located in the extension direction of the connected slide (152) segment; a stepped structure (152c) that sinks into the valve core (130) is provided between the two connected slide (152) segments, and the bottom surface of the slide at the end of each slide segment is higher than the bottom surface of the slide at the starting end of the connected slide segment.

5. A spray device for a dishwasher according to any one of claims 2 to 4, characterized in that, The movable part (140) includes, The actuating component (141) is located in the water inlet channel (121) and moves along one axial direction of the valve core (130) under the drive of water flow; The reset component (143) is elastically extendable. One end is connected to the actuating component (141), and the other end is movably connected to the channel wall of the water inlet channel (121) or the valve core (130), thereby driving the actuating component (141) to move along the other axial direction of the valve core (130).

6. The spray device for a dishwasher according to claim 5, characterized in that, The actuating component (141) has a columnar structure and extends into the first water channel (131) through the opening on the axial side of the valve core (130). A second water channel is formed inside the actuating component (141). The actuating component (141) has an inlet on the axial side near the water inlet channel (121) that communicates with the second water channel, and an outlet on the peripheral side wall that communicates with the second water channel. The outlet of the actuating component (141) is connected to the first water channel (131).

7. The spray device for a dishwasher according to claim 5, characterized in that, The columnar actuating component (141) has a radially outwardly extending support (141a) at one end near the water inlet channel (121). The support (141a) or the valve core (130) has an annular rotating groove (132) coaxial with the valve core (130). One end of the reset component (143) is slidably connected to the rotating groove (132), and the other end is connected to the valve core (130) or the support (141a).

8. The spray device for a dishwasher according to claim 6, characterized in that, The columnar actuating component (141) is provided with a connecting part (141b) extending to the outer peripheral wall of the valve core (130). The connecting part (141b) is provided at a certain distance from the valve core (130), and the guide structure (151) is installed on the connecting part (141b).

9. The spray device for a dishwasher according to claim 5, characterized in that, Each outlet of the actuating component (141) is provided with an adjustable structure (142) that can be opened and closed.

10. A dishwasher, comprising an inner liner for holding tableware, characterized in that, The inner liner is provided with a spray device (1) of any one of claims 1-9 for a dishwasher.

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